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Table 1 Overview of the various preselection scenarios implemented

From: Investigating the impact of preselection on subsequent single-step genomic BLUP evaluation of preselected animals

Heritability of the breeding goal trait Type of preselection Intensity of preselection Scenario name
0.5 – Noa No preselection with high heritability
0.5 Genomic Highb High genomic preselection with high heritability
0.5 Genomic Very highc Very high genomic preselection with high heritability
0.3 – Noa No preselection with medium heritability
0.3 Genomic Highb High genomic preselection with medium heritability
0.3 Genomic Very highc Very high genomic preselection with medium heritability
0.1 – Noa No preselection with low heritability
0.1 Genomic Highb High genomic preselection with low heritability
0.1 Genomic Very highc Very high genomic preselection with low heritability
0.1 Parental average Highb High parental average preselection with low heritability
0.1 Parental average Very highc Very high parental average preselection with low heritability
0.1 Random Highb High random preselection with low heritability
0.1 Random Very highc Very high random preselection with low heritability
  1. aNo preselection: all selection candidates were kept until the subsequent genetic evaluation
  2. bHigh preselection: 10% of the male and 15% of the female selection candidates were preselected
  3. cVery high preselection: 5% of the male and 12.5% of the female selection candidates were preselected
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Genetics Selection Evolution

ISSN: 1297-9686